CN218074105U - A transfer subassembly and intelligent locker for intelligent locker - Google Patents

A transfer subassembly and intelligent locker for intelligent locker Download PDF

Info

Publication number
CN218074105U
CN218074105U CN202121745508.6U CN202121745508U CN218074105U CN 218074105 U CN218074105 U CN 218074105U CN 202121745508 U CN202121745508 U CN 202121745508U CN 218074105 U CN218074105 U CN 218074105U
Authority
CN
China
Prior art keywords
telescopic
horizontal
driving
intelligent
mounting plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121745508.6U
Other languages
Chinese (zh)
Inventor
汪展望
邓向荣
王兴平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Zhilai Science and Technology Co Ltd
Original Assignee
Shenzhen Zhilai Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Zhilai Science and Technology Co Ltd filed Critical Shenzhen Zhilai Science and Technology Co Ltd
Priority to CN202121745508.6U priority Critical patent/CN218074105U/en
Application granted granted Critical
Publication of CN218074105U publication Critical patent/CN218074105U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to a transfer component for an intelligent storage cabinet, which comprises a track, a mounting plate, a bracket, a horizontal driving unit, a vertical driving unit and a loading platform; the track is arranged in a cabinet body of the intelligent locker, is positioned in the middle of the intelligent locker in the thickness direction and penetrates through the intelligent locker in the width direction; the mounting plate is connected to the rail and used for mounting the bracket; the horizontal driving unit is used for driving the mounting plate to move along the track; the carrying platform is arranged on the bracket and used for taking and placing articles; the carrying platform moves in the vertical direction along the height direction of the support under the action of the vertical driving unit. The utility model discloses still relate to an intelligent locker. Implement the utility model discloses a transfer subassembly and intelligent locker for intelligent locker has following beneficial effect: the structure is simple and the reliability is high.

Description

A transfer subassembly and intelligent locker for intelligent locker
Technical Field
The utility model relates to an intelligence locker field, more specifically say, relate to a transfer subassembly and intelligent locker for intelligent locker.
Background
The earliest intelligent lockers used manual delivery and did not require transfer modules. In some subsequent intelligent lockers for delivery by hand or delivery tools, transfer assemblies are provided for moving articles from the delivery opening to a storage location or vice versa. These transfer assemblies include conveyor type or gripping or clamping type components. After delivery using unmanned aerial vehicles has occurred, transfer units capable of transporting items at different elevation positions are also used. However, the conventional transfer assembly generally has a complicated article obtaining and conveying structure or needs to transfer articles by means of an external container (such as a tray) or an external pushing structure for transferring articles from the delivery port to the storage space, and thus has the defects of complicated structure, poor reliability and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned structure of prior art comparatively complicated, the relatively poor defect of reliability, provide a transfer subassembly and intelligent locker that are used for intelligent locker that the structure is comparatively simple, the reliability is higher.
The utility model provides a technical scheme that its technical problem adopted is: constructing a transfer assembly for an intelligent storage cabinet, which comprises a track, a mounting plate, a bracket, a horizontal driving unit, a vertical driving unit and a carrying platform; the track is arranged in a cabinet body of the intelligent locker, is positioned in the middle of the intelligent locker in the thickness direction and penetrates through the intelligent locker in the width direction; the mounting plate is connected to the rail and used for mounting the bracket; the horizontal driving unit is used for driving the mounting plate to move along the track; the carrying platform is arranged on the bracket and used for taking and placing articles; the carrying platform moves in the vertical direction along the height direction of the support under the action of the vertical driving unit.
Still further, the track includes a bottom rail and a top rail; the mounting plate is movably connected to the bottom guide rail through a horizontal sliding assembly arranged on the bottom surface of the mounting plate.
Still further, the horizontal sliding assembly includes guide wheels contacting the side surfaces of the bottom rail and sliding wheels contacting the bottom surface of the bottom rail; the sliding wheels and guide wheels surround the bottom rail such that the horizontal sliding assembly moves along the length of the bottom rail.
Furthermore, the horizontal driving unit comprises a horizontal driving motor, a horizontal driving wheel set and a horizontal synchronous belt; the horizontal driving motor and the horizontal driving wheel set are arranged on the mounting plate, and the horizontal synchronous belt is arranged at the edge of the bottom guide rail and is parallel to the bottom guide rail; the horizontal driving wheel set is meshed with the synchronous belt; the horizontal driving wheel group comprises a horizontal driving wheel and a horizontal follow-up wheel; and after the synchronous belt is meshed with the horizontal driving wheel, the tension of the synchronous belt is adjusted through the horizontal follow-up wheel.
Furthermore, the bracket comprises two vertical columns which are parallel to each other, one ends of the vertical columns are fixed at different positions of the mounting plate, and the other ends of the vertical columns are connected together through a top column; a top guide wheel which is contacted with the side surface of the top guide rail is arranged on the top column; the vertical driving unit comprises double-shaft linkage driving modules which are respectively arranged on the stand columns.
Still further, the carrier platform comprises a platform mounting assembly and a carrier plate; the platform mounting assembly is connected to the double-shaft driving linkage driving module and rises or falls along with the action of the double-shaft linkage driving module; the object carrying plate is fixed on the platform mounting assembly and used for placing objects.
Furthermore, the carrying platform also comprises a bidirectional telescopic unit; the bidirectional telescopic units are arranged on two sides of the carrying plate and used for extending out of the front or the rear of the carrying plate to take or put down articles.
Furthermore, the bidirectional telescopic unit comprises fixed plates respectively arranged at two sides of the carrying plate, telescopic arms respectively arranged on the fixed plates and a telescopic driving structure; the telescopic driving structure comprises a telescopic driving motor arranged on the bottom surface of the loading plate and telescopic gears which are driven by the telescopic driving motor through a universal driving shaft and are respectively arranged at two ends of the universal driving shaft, wherein the telescopic gears are matched with racks or synchronous belts arranged on the telescopic arms, so that the telescopic arms stretch out or retract.
Furthermore, the telescopic arm comprises a first telescopic section and a second telescopic section; the first telescopic section is connected to the fixed plate through a first guide rail arranged on the fixed plate and a first sliding block arranged on the first telescopic section, and a rack meshed with the telescopic gear is further arranged on the first telescopic section; the second telescopic section is connected to the first telescopic section through a second guide rail arranged on the first telescopic section and a second sliding block arranged on the second telescopic section, and the second telescopic section is also provided with a telescopic synchronous belt meshed with the telescopic gear.
The utility model discloses still relate to an intelligent locker, intelligent locker is including being used for getting the transfer subassembly of transmission article between the port at the delivery port or delivery port and user, the transfer subassembly is foretell transfer subassembly.
Implement the utility model discloses a transfer subassembly and intelligent locker for intelligent locker has following beneficial effect: the bracket is arranged on the mounting plate, so that the mounting plate can move along the guide rail under the action of the horizontal driving unit, meanwhile, the vertical driving unit enables the loading platform arranged on the bracket to move in the vertical direction on the basis of the horizontal movement along the guide rail, and the loading platform realizes fetching or transferring of articles under the condition of realizing the horizontal and vertical movement; therefore, the structure is simple and the reliability is high.
Drawings
FIG. 1 is a schematic view of a transfer assembly for an intelligent cabinet and a transfer assembly in one direction in an embodiment of the intelligent cabinet of the present invention;
FIG. 2 is a schematic view of the transfer unit in another orientation according to the embodiment;
FIG. 3 is a schematic view of the structure of the carrier platform in one direction according to the embodiment;
FIG. 4 is a schematic view of the carrier platform of the embodiment shown in another orientation;
FIG. 5 is an exploded view of the carrier platform according to the embodiment;
FIG. 6 is a schematic structural diagram of the intelligent locker in the embodiment.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1 and fig. 2, in the embodiment of the transfer assembly for an intelligent locker and the intelligent locker of the present invention, the transfer assembly for the intelligent locker comprises a rail 1, a mounting plate 2, a bracket 3, a horizontal driving unit 6, a vertical driving unit 4 and a loading platform 5; the track 1 is arranged in the cabinet body of the intelligent storage cabinet, is positioned in the middle of the thickness direction of the intelligent storage cabinet and penetrates through the width direction of the intelligent storage cabinet, and is used for setting the horizontal movement direction of the mounting plate 2 (comprising other components arranged on the mounting plate 2) in the transfer assembly and enabling the mounting plate 2 to move stably; the mounting plate 2 is connected to the track 1, and the support 3 is arranged on the mounting plate 2; the horizontal driving unit 6 is used for driving the mounting plate 2 to move along the track 1; the loading platform 5 is mounted on the bracket 3 through a vertical driving unit 4 and is used for taking and placing articles; the loading platform 5 is vertically moved along the height direction of the support 3 by the vertical driving unit 4. That is, in this embodiment, by arranging the vertical driving unit 4 and the loading platform 5 on the support 3, and the support 3 on the mounting plate 2, the mounting plate 2 is connected to the guide rail 1 and moves along the guide rail 1 under the action of the horizontal driving unit 6, and the guide rail 1 is arranged at the middle position of the intelligent storage cabinet, all functions of the transfer assembly in the intelligent storage cabinet can be realized through the above components, and the realized components have simple structure and high reliability.
In the present embodiment, as shown in fig. 1, the track 1 includes a bottom rail 11 and a top rail 12; the mounting plate 2 is movably attached to the bottom rail 11 by a horizontal slide assembly 21 provided on the bottom surface of the mounting plate. Referring to fig. 2, fig. 2 shows a schematic structural view of the bottom surface of the mounting plate 2 and the horizontal driving unit 6, and in fig. 2, the horizontal sliding assembly 21 includes a guide wheel 23 contacting the side surface of the bottom rail 11 and a sliding wheel 22 contacting the bottom surface of the bottom rail 11; the sliding wheels 22 and the guide wheels 23 surround the bottom rail 11, so that the horizontal sliding assembly 21 can move along the length direction of the bottom rail 11 under the condition of force. Since the horizontal sliding member 21 is fixed to the bottom surface of the mounting plate 2, the horizontal sliding member 21 moves to move the mounting plate 2 and other components mounted on the mounting plate 2.
In the present embodiment, the horizontal driving unit 6 includes a horizontal driving motor 61, a horizontal driving wheel set, and a horizontal timing belt 64; the horizontal driving motor 61 and the horizontal driving wheel set are installed on the installation plate 2, and the horizontal synchronous belt 64 is arranged at the edge of the bottom guide rail 11 and is parallel to the bottom guide rail 11; the horizontal driving wheel set is meshed with the horizontal synchronous belt 64; the horizontal driving wheel group comprises a horizontal driving wheel 63 and a horizontal following wheel 62; after the horizontal timing belt 64 is engaged with the horizontal driving wheel 63, the tension of the timing belt is adjusted by the horizontal follower wheel 62. In this embodiment, the horizontal follower wheels 62 include two horizontal follower wheels 62 disposed respectively in front of and behind the horizontal drive wheel 63, i.e., the horizontal timing belt 64 passes through one horizontal follower wheel 62, then engages with the horizontal drive wheel 63, and then passes through one horizontal follower wheel 62. The two horizontal follower wheels 62 and the horizontal driving wheel 63 form a wheel set according to a set position, wherein the horizontal driving wheel 63 is located between the two horizontal follower wheels 62 and is higher, please refer to fig. 1. When the driving motor 61 rotates, the horizontal driving wheel 63 is driven to rotate, and since the horizontal timing belt 64 is fixed and cannot rotate, the rotation of the horizontal driving wheel 63 results in that the component (i.e., the mounting plate 2) where the horizontal driving wheel set is located moves along the horizontal timing belt 64.
In this embodiment, the mounting plate 2 is provided with a bracket 3 in addition to the driving motor 61 and the horizontal driving wheel set; the mounting position of the bracket 3 is slightly rearward, i.e., further away from the horizontal timing belt 64, than the mounting positions of the driving motor 61 and the horizontal driving wheel set. The bracket 3 comprises two parallel upright posts 31, one ends of the upright posts 31 are fixed on different positions of the mounting plate 2, and the other ends are connected together through a top post 32; the top column 32 is provided with a top guide wheel 25 which is contacted with the side surface of the top guide rail 12; and the vertical driving units 4 are respectively installed on the vertical columns 31, and the vertical driving units 4 comprise double-shaft linkage driving modules respectively arranged on the vertical columns. In this embodiment, the top guide wheel 25 on the top pillar 32 determines the position of the top of the bracket 3, and in the case that the top guide rail 12 is fixed, the top guide rail 12 and the top guide wheel 25 are matched with the bottom guide rail 11 and the horizontal sliding assembly 21, so that the bracket 3 with a certain height does not shake, pause or the like when the mounting plate 2 moves, and the movement of the whole transfer assembly is more stable and smooth, and as a result, the reliability of the whole part is higher and the whole part is not easy to damage.
In the present embodiment, the biaxial linkage driving module is a conventional commercial module, which is divided into two parts, and is mounted on the two columns 31, respectively, and synchronously operated; the platform installation components 41 are respectively connected with two parts of the double-shaft linkage driving module and are lifted or lowered along with the actions of the two parts; and the carrier plate 5 is mounted on the platform mounting assembly 41. In other words, the carrier platform 5 includes a platform mounting assembly 41 and a carrier plate 51; the platform mounting assembly 41 is connected to the double-shaft driving linkage driving module and is lifted or lowered along with the action of the double-shaft driving linkage driving module; the carrier plate 51 is fixed to the platform mounting assembly 41 for holding an object.
In this embodiment, the loading platform 5 further includes a bidirectional telescopic unit; the two-way telescopic units are arranged at two sides of the carrying plate 51 and used for extending to the front or the rear of the carrying plate 51 to take or put down articles, as shown in fig. 3.
In fig. 3 and 4, the structure of the carrier platform 5 is shown from different angles, and fig. 5 shows the structure of the carrier platform 5 after partial disassembly. Specifically, as shown in fig. 3 to 5, the bidirectional telescopic unit includes fixed plates 52 respectively disposed at both sides of the carrier plate, telescopic arms respectively disposed on the fixed plates 52, and a telescopic driving structure; the telescopic driving structure comprises a telescopic driving motor 59 arranged on the bottom surface of the loading plate 51 and telescopic gears 58 which are driven by the telescopic driving motor 59 through a linkage shaft 581 and are respectively arranged at two ends of the linkage shaft, wherein the telescopic gears 58 are matched with racks or synchronous belts arranged on the telescopic arms, so that the telescopic arms extend out or retract. The telescopic arm comprises a first telescopic section 53 and a second telescopic section 54; the first telescopic segment 53 is connected to the fixed plate 52 through a first guide rail 521 arranged on the fixed plate 52 and a first sliding block 522 arranged on the first telescopic segment 53, and a telescopic rack 55 meshed with the telescopic gear 58 is further arranged on the first telescopic segment 53; the second telescopic section 54 is connected to the first telescopic section 53 through a second guide track 531 arranged on the first telescopic section 53 and a second slider 532 arranged on the second telescopic section 54, and the second telescopic section 54 is further provided with a synchronous belt 56 meshed with the telescopic gear 58. It is to be noted that, in the above description, the structure on the one-side fixing plate 52 is given. As mentioned above, in the present embodiment, the two fixing plates 52 are respectively disposed on two sides of the object carrying plate 51, see fig. 3-5, the two fixing plates 52 are respectively disposed on the left and right sides of the object carrying plate 51, and the structure of the fixing plate 52 on each side is the same or symmetrical, that is, each fixing plate 52 is provided with the first telescopic section 53, the second telescopic section 54, the telescopic gear 58 and the other components, and the position relationship and the connection relationship are the same or symmetrical. The two expansion gears 58 are connected together by a linkage shaft 581 to synchronize their movements, as shown in fig. 4. In addition, as shown in fig. 4, at the front and rear ends of the carrier plate 51, there are further provided visual sensors 57 for checking the positions of reference points or other components when the transfer unit moves, so that the carrier plate 52 can be aligned. When the object carrying plate 52 is aligned, the telescopic motor 59 rotates, the telescopic gear 58 corresponding to the two side fixing plates 52 rotates through the linkage shaft 581, and the telescopic gear 58 is engaged with the telescopic rack 55 and the telescopic timing belt 56, so that the first telescopic section 53 and the second telescopic section 54 on the two sides extend or retract to the same direction at the same time at the same position, respectively, so that the bidirectional telescopic unit extends or retracts to one direction quickly, and the time for taking or retracting the object is saved. The direction of rotation of the telescoping motor 59 determines the direction of movement of the first and second telescoping sections 53, 54.
The utility model discloses still relate to an intelligent locker, intelligent locker is including being used for getting the transfer subassembly of transmission article between the port at the delivery port or delivery port and user, the transfer subassembly is foretell transfer subassembly. Fig. 6 illustrates the location of the above-mentioned transfer assembly 500 installed in the intelligent locker in this embodiment, taking articles delivered by the unmanned aerial vehicle as an example. In fig. 6, a partial perspective drawing is taken to clearly show the position of the transfer assembly 500, and in order to clearly express the position, some parts of the intelligent cabinet which are irrelevant or not relevant to the transfer assembly 500 are removed from fig. 6.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A transfer assembly for an intelligent storage cabinet is characterized by comprising a track, a mounting plate, a bracket, a horizontal driving unit, a vertical driving unit and a carrying platform; the track is arranged in a cabinet body of the intelligent locker, is positioned in the middle of the intelligent locker in the thickness direction and penetrates through the intelligent locker in the width direction; the mounting plate is connected to the rail and used for mounting the bracket; the horizontal driving unit is used for driving the mounting plate to move along the track; the carrying platform is arranged on the bracket and used for taking and placing articles; and the carrying platform moves in the vertical direction along the height direction of the bracket under the action of the vertical driving unit.
2. The transfer assembly for a smart locker of claim 1 wherein the track comprises a bottom rail and a top rail; the mounting plate is movably connected to the bottom guide rail through a horizontal sliding assembly arranged on the bottom surface of the mounting plate.
3. The transfer assembly for an intelligent locker of claim 2, wherein the horizontal sliding assembly comprises a guide wheel in contact with a side surface of the bottom rail and a sliding wheel in contact with a bottom surface of the bottom rail; the sliding wheels and guide wheels surround the bottom rail such that the horizontal sliding assembly moves along the length of the bottom rail.
4. The transfer assembly for an intelligent locker of claim 2, wherein the horizontal driving unit comprises a horizontal driving motor, a horizontal driving wheel set and a horizontal synchronous belt; the horizontal driving motor and the horizontal driving wheel set are arranged on the mounting plate, and the horizontal synchronous belt is arranged at the edge of the bottom guide rail and is parallel to the bottom guide rail; the horizontal driving wheel set is meshed with the synchronous belt; the horizontal driving wheel group comprises a horizontal driving wheel and a horizontal follow-up wheel; and after the synchronous belt is meshed with the horizontal driving wheel, the tension of the synchronous belt is adjusted through the horizontal follow-up wheel.
5. The transfer assembly for the intelligent storage cabinet according to claim 4, wherein the support comprises two parallel columns, one end of each column is fixed on different positions of the mounting plate, and the other ends of the columns are connected together through a top column; a top guide wheel which is contacted with the side surface of the top guide rail is arranged on the top column; the vertical driving unit comprises double-shaft linkage driving modules which are respectively arranged on the stand columns.
6. The transfer assembly for an intelligent storage cabinet of claim 5, wherein the carrier platform comprises a platform mounting assembly and a carrier plate; the platform mounting assembly is connected to the double-shaft driving linkage driving module and rises or falls along with the action of the double-shaft linkage driving module; the carrying plate is fixed on the platform mounting assembly and used for placing articles.
7. The transfer assembly for an intelligent storage cabinet according to claim 6, wherein the carrier platform further comprises a bidirectional telescoping unit; the bidirectional telescopic units are arranged on two sides of the carrying plate and used for extending out of the front or the rear of the carrying plate to take or put down articles.
8. The transfer assembly for an intelligent storage cabinet according to claim 7, wherein the bidirectional telescopic unit comprises fixing plates respectively disposed at two sides of the carrying plate, telescopic arms respectively disposed on the fixing plates, and a telescopic driving structure; the telescopic driving structure comprises a telescopic driving motor arranged on the bottom surface of the loading plate and telescopic gears which are driven by the telescopic driving motor through a universal driving shaft and are respectively arranged at two ends of the universal driving shaft, wherein the telescopic gears are matched with racks or synchronous belts arranged on the telescopic arms, so that the telescopic arms stretch out or retract.
9. The transfer assembly for a smart locker of claim 8 wherein the telescopic arm comprises a first telescopic section and a second telescopic section; the first telescopic section is connected to the fixed plate through a first guide rail arranged on the fixed plate and a first sliding block arranged on the first telescopic section, and a rack meshed with the telescopic gear is further arranged on the first telescopic section; the second telescopic section is connected to the first telescopic section through a second guide rail arranged on the first telescopic section and a second sliding block arranged on the second telescopic section, and the second telescopic section is also provided with a telescopic synchronous belt meshed with the telescopic gear.
10. An intelligent locker including a transfer assembly for transferring articles between delivery openings or between a delivery opening and a user access port, wherein the transfer assembly is as claimed in any one of claims 1 to 9.
CN202121745508.6U 2021-07-29 2021-07-29 A transfer subassembly and intelligent locker for intelligent locker Active CN218074105U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121745508.6U CN218074105U (en) 2021-07-29 2021-07-29 A transfer subassembly and intelligent locker for intelligent locker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121745508.6U CN218074105U (en) 2021-07-29 2021-07-29 A transfer subassembly and intelligent locker for intelligent locker

Publications (1)

Publication Number Publication Date
CN218074105U true CN218074105U (en) 2022-12-20

Family

ID=84442834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121745508.6U Active CN218074105U (en) 2021-07-29 2021-07-29 A transfer subassembly and intelligent locker for intelligent locker

Country Status (1)

Country Link
CN (1) CN218074105U (en)

Similar Documents

Publication Publication Date Title
CN106604626B (en) Tray type electronic element supply device capable of replacing material tray on line
CN212711034U (en) Goods taking mechanism and carrying device
CN111284997A (en) Automatic storing and taking equipment for cold storage of blood station
CN218074105U (en) A transfer subassembly and intelligent locker for intelligent locker
CN111302005B (en) Blanking structure of roller conveyor
CN211109292U (en) Transmission equipment
CN218319034U (en) Synchronous sorting mechanism of four-way shuttle robot
CN209834671U (en) Logistics object management device
CN109552906B (en) Full-automatic loading and unloading system for packaging boxes
CN110897387A (en) Unmanned aerial vehicle express delivery cabinet
CN111891690A (en) Positioning system for logistics conveying and positioning device thereof
CN213355742U (en) Longitudinal and transverse bus
CN112757987B (en) Intelligent book management robot
CN113830483A (en) Intelligent storage rack capable of being automatically unloaded
CN210853918U (en) Container
CN214778387U (en) Stereo garage
CN110844433B (en) Three-dimensional storage device
CN114291468A (en) Portable high-freedom transfer robot
CN211254348U (en) Compact online stewing and temporary storage device after glue pouring
CN111846722A (en) Double-upright-column roadway type stacker for automatic three-dimensional refrigeration house
CN111789411A (en) Modular independently opened and closed horizontal bookshelf device and control method thereof
CN112938271A (en) Transmission equipment
CN218056277U (en) Plastic uptake box for automobile ring parts
CN214609618U (en) A manipulator for equipment access
CN218023534U (en) Automatic warehouse for products entering and exiting warehouse

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant